1. & 2.
Apply two shades of eye shadow: a deep pine like Cle de Peau Beaute Satin eye color in Emerald No. 109 ($45; nordstrom.com
) on the lids and an iridescent teal hue like Bobbi Brown eye shadow in Bash Metallic ($20; saksfifthavenue.com
) in the creases and along the lower lash lines. "The key is to blend to death," says makeup artist Mariel Barrera, who created these looks on Seyfried using these products. "That way the two colors will melt together and you'll get a nice smoky effect." 3.
Curl lashes and apply two coats of black mascara like Giorgio Armani Eyes to Kill mascara in Black Steel ($28; saksfifthavenue.com